TY - RPRT TI - A side-entry cold holder for cryo-electron microscopy. AU - R Henderson AU - C Raeburn AU - G Vigers PY - 1991 DO - 10.1016/0304-3991(91)90043-6 UR - https://pubmed.ncbi.nlm.nih.gov/2063494/ ID - 2063494 ER -